Abstract: A power adaptor system and method is provided. The adaptor system includes a system side and a power adaptor. The power adaptor method includes steps of: transforming an AC voltage to a DC voltage; the power adaptor generating a periodic signal and outputting a combined signal according to the DC voltage and the periodic signal; the system side retrieving a determination signal corresponding to the periodic signal according to the combined signal; and the system side selecting an operating mode according to the determination signal.

Abstract: An electronic apparatus including a display block and a system block is provided. The display block includes a display panel for displaying a frame. The system block includes a comparison unit, an information generation unit and a transmission circuit. The comparison unit compares first frame data with second frame data to generate partial frame data. The information generation unit generates start information and address information according to the partial frame data. The transmission circuit transmits the start information, the address information and the partial frame data to the display block. The display block updates a part of the frame according to the start information, the address information and the partial frame data.

Abstract: A power adaptor system and method is provided. The adaptor system includes a system side and a power adaptor. The power adaptor method includes steps of: transforming an AC voltage to a DC voltage; the power adaptor generating a periodic signal and outputting a combined signal according to the DC voltage and the periodic signal; the system side retrieving a determination signal corresponding to the periodic signal according to the combined signal; and the system side selecting an operating mode according to the determination signal.

Abstract: A computer system includes a display and a computer device, having a CPU, a peripheral controller, and a setting circuit. The CPU and the peripheral controller respectively include first and second pins coupled to the setting circuit. The setting circuit respectively has the first pin biased with first reference voltage, and has the second pin biased with second reference voltage when the display supports first and second transmission interfaces. The CPU and the peripheral controller respectively provide first display data of the first transmission interface to drive the display in response to the first reference voltage on the first pin, and provide second display data of the second transmission interface to drive the display in response to the second reference voltage on the second pin.